mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 22:03:15 +00:00
57e405e1f4
Support Bootconfig feature.
- The bootconfig feature replaces the androidboot.*
kernel cmdline options.
This was adapted from downstream [1] commit : 7af0a0506d4d ("cuttlefish:
support bootconfig parameters").
Link:[1] https://android.googlesource.com/platform/external/u-boot/
Signed-off-by: Safae Ouajih <souajih@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
361 lines
14 KiB
C
361 lines
14 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause */
|
|
/*
|
|
* This is from the Android Project,
|
|
* Repository: https://android.googlesource.com/platform/system/tools/mkbootimg
|
|
* File: include/bootimg/bootimg.h
|
|
* Commit: cce5b1923e3cd2fcb765b512610bdc5c42bc501d
|
|
*
|
|
* Copyright (C) 2007 The Android Open Source Project
|
|
*/
|
|
|
|
#ifndef _ANDROID_IMAGE_H_
|
|
#define _ANDROID_IMAGE_H_
|
|
|
|
#include <linux/compiler.h>
|
|
#include <linux/types.h>
|
|
|
|
#define ANDR_GKI_PAGE_SIZE 4096
|
|
#define ANDR_BOOT_MAGIC "ANDROID!"
|
|
#define ANDR_BOOT_MAGIC_SIZE 8
|
|
#define ANDR_BOOT_NAME_SIZE 16
|
|
#define ANDR_BOOT_ARGS_SIZE 512
|
|
#define ANDR_BOOT_EXTRA_ARGS_SIZE 1024
|
|
#define VENDOR_BOOT_MAGIC "VNDRBOOT"
|
|
#define ANDR_VENDOR_BOOT_MAGIC_SIZE 8
|
|
#define ANDR_VENDOR_BOOT_ARGS_SIZE 2048
|
|
#define ANDR_VENDOR_BOOT_NAME_SIZE 16
|
|
|
|
#define BOOTCONFIG_MAGIC "#BOOTCONFIG\n"
|
|
#define BOOTCONFIG_MAGIC_SIZE 12
|
|
#define BOOTCONFIG_SIZE_SIZE 4
|
|
#define BOOTCONFIG_CHECKSUM_SIZE 4
|
|
#define BOOTCONFIG_TRAILER_SIZE BOOTCONFIG_MAGIC_SIZE + \
|
|
BOOTCONFIG_SIZE_SIZE + \
|
|
BOOTCONFIG_CHECKSUM_SIZE
|
|
|
|
struct andr_boot_img_hdr_v3 {
|
|
u8 magic[ANDR_BOOT_MAGIC_SIZE];
|
|
|
|
u32 kernel_size; /* size in bytes */
|
|
u32 ramdisk_size; /* size in bytes */
|
|
|
|
u32 os_version;
|
|
|
|
u32 header_size; /* size of boot image header in bytes */
|
|
u32 reserved[4];
|
|
u32 header_version; /* offset remains constant for version check */
|
|
|
|
u8 cmdline[ANDR_BOOT_ARGS_SIZE + ANDR_BOOT_EXTRA_ARGS_SIZE];
|
|
/* for boot image header v4 only */
|
|
u32 signature_size; /* size in bytes */
|
|
};
|
|
|
|
struct andr_vnd_boot_img_hdr {
|
|
u8 magic[ANDR_VENDOR_BOOT_MAGIC_SIZE];
|
|
u32 header_version;
|
|
u32 page_size; /* flash page size we assume */
|
|
|
|
u32 kernel_addr; /* physical load addr */
|
|
u32 ramdisk_addr; /* physical load addr */
|
|
|
|
u32 vendor_ramdisk_size; /* size in bytes */
|
|
|
|
u8 cmdline[ANDR_VENDOR_BOOT_ARGS_SIZE];
|
|
|
|
u32 tags_addr; /* physical addr for kernel tags */
|
|
|
|
u8 name[ANDR_VENDOR_BOOT_NAME_SIZE]; /* asciiz product name */
|
|
u32 header_size; /* size of vendor boot image header in bytes */
|
|
u32 dtb_size; /* size of dtb image */
|
|
u64 dtb_addr; /* physical load address */
|
|
/* for boot image header v4 only */
|
|
u32 vendor_ramdisk_table_size; /* size in bytes for the vendor ramdisk table */
|
|
u32 vendor_ramdisk_table_entry_num; /* number of entries in the vendor ramdisk table */
|
|
u32 vendor_ramdisk_table_entry_size; /* size in bytes for a vendor ramdisk table entry */
|
|
u32 bootconfig_size; /* size in bytes for the bootconfig section */
|
|
};
|
|
|
|
/* The bootloader expects the structure of andr_boot_img_hdr_v0 with header
|
|
* version 0 to be as follows: */
|
|
struct andr_boot_img_hdr_v0 {
|
|
/* Must be ANDR_BOOT_MAGIC. */
|
|
char magic[ANDR_BOOT_MAGIC_SIZE];
|
|
|
|
u32 kernel_size; /* size in bytes */
|
|
u32 kernel_addr; /* physical load addr */
|
|
|
|
u32 ramdisk_size; /* size in bytes */
|
|
u32 ramdisk_addr; /* physical load addr */
|
|
|
|
u32 second_size; /* size in bytes */
|
|
u32 second_addr; /* physical load addr */
|
|
|
|
u32 tags_addr; /* physical addr for kernel tags */
|
|
u32 page_size; /* flash page size we assume */
|
|
|
|
/* Version of the boot image header. */
|
|
u32 header_version;
|
|
|
|
/* Operating system version and security patch level.
|
|
* For version "A.B.C" and patch level "Y-M-D":
|
|
* (7 bits for each of A, B, C; 7 bits for (Y-2000), 4 bits for M)
|
|
* os_version = A[31:25] B[24:18] C[17:11] (Y-2000)[10:4] M[3:0] */
|
|
u32 os_version;
|
|
|
|
char name[ANDR_BOOT_NAME_SIZE]; /* asciiz product name */
|
|
|
|
char cmdline[ANDR_BOOT_ARGS_SIZE];
|
|
|
|
u32 id[8]; /* timestamp / checksum / sha1 / etc */
|
|
|
|
/* Supplemental command line data; kept here to maintain
|
|
* binary compatibility with older versions of mkbootimg. */
|
|
char extra_cmdline[ANDR_BOOT_EXTRA_ARGS_SIZE];
|
|
|
|
/* Fields in boot_img_hdr_v1 and newer. */
|
|
u32 recovery_dtbo_size; /* size in bytes for recovery DTBO/ACPIO image */
|
|
u64 recovery_dtbo_offset; /* offset to recovery dtbo/acpio in boot image */
|
|
u32 header_size;
|
|
|
|
/* Fields in boot_img_hdr_v2 and newer. */
|
|
u32 dtb_size; /* size in bytes for DTB image */
|
|
u64 dtb_addr; /* physical load address for DTB image */
|
|
} __attribute__((packed));
|
|
|
|
/* When a boot header is of version 0, the structure of boot image is as
|
|
* follows:
|
|
*
|
|
* +-----------------+
|
|
* | boot header | 1 page
|
|
* +-----------------+
|
|
* | kernel | n pages
|
|
* +-----------------+
|
|
* | ramdisk | m pages
|
|
* +-----------------+
|
|
* | second stage | o pages
|
|
* +-----------------+
|
|
*
|
|
* n = (kernel_size + page_size - 1) / page_size
|
|
* m = (ramdisk_size + page_size - 1) / page_size
|
|
* o = (second_size + page_size - 1) / page_size
|
|
*
|
|
* 0. all entities are page_size aligned in flash
|
|
* 1. kernel and ramdisk are required (size != 0)
|
|
* 2. second is optional (second_size == 0 -> no second)
|
|
* 3. load each element (kernel, ramdisk, second) at
|
|
* the specified physical address (kernel_addr, etc)
|
|
* 4. prepare tags at tag_addr. kernel_args[] is
|
|
* appended to the kernel commandline in the tags.
|
|
* 5. r0 = 0, r1 = MACHINE_TYPE, r2 = tags_addr
|
|
* 6. if second_size != 0: jump to second_addr
|
|
* else: jump to kernel_addr
|
|
*/
|
|
|
|
/* When the boot image header has a version of 2, the structure of the boot
|
|
* image is as follows:
|
|
*
|
|
* +---------------------+
|
|
* | boot header | 1 page
|
|
* +---------------------+
|
|
* | kernel | n pages
|
|
* +---------------------+
|
|
* | ramdisk | m pages
|
|
* +---------------------+
|
|
* | second stage | o pages
|
|
* +---------------------+
|
|
* | recovery dtbo/acpio | p pages
|
|
* +---------------------+
|
|
* | dtb | q pages
|
|
* +---------------------+
|
|
*
|
|
* n = (kernel_size + page_size - 1) / page_size
|
|
* m = (ramdisk_size + page_size - 1) / page_size
|
|
* o = (second_size + page_size - 1) / page_size
|
|
* p = (recovery_dtbo_size + page_size - 1) / page_size
|
|
* q = (dtb_size + page_size - 1) / page_size
|
|
*
|
|
* 0. all entities are page_size aligned in flash
|
|
* 1. kernel, ramdisk and DTB are required (size != 0)
|
|
* 2. recovery_dtbo/recovery_acpio is required for recovery.img in non-A/B
|
|
* devices(recovery_dtbo_size != 0)
|
|
* 3. second is optional (second_size == 0 -> no second)
|
|
* 4. load each element (kernel, ramdisk, second, dtb) at
|
|
* the specified physical address (kernel_addr, etc)
|
|
* 5. If booting to recovery mode in a non-A/B device, extract recovery
|
|
* dtbo/acpio and apply the correct set of overlays on the base device tree
|
|
* depending on the hardware/product revision.
|
|
* 6. prepare tags at tag_addr. kernel_args[] is
|
|
* appended to the kernel commandline in the tags.
|
|
* 7. r0 = 0, r1 = MACHINE_TYPE, r2 = tags_addr
|
|
* 8. if second_size != 0: jump to second_addr
|
|
* else: jump to kernel_addr
|
|
*/
|
|
|
|
/* When the boot image header has a version of 3, the structure of the boot
|
|
* image is as follows:
|
|
*
|
|
* +---------------------+
|
|
* | boot header | 4096 bytes
|
|
* +---------------------+
|
|
* | kernel | m pages
|
|
* +---------------------+
|
|
* | ramdisk | n pages
|
|
* +---------------------+
|
|
*
|
|
* m = (kernel_size + 4096 - 1) / 4096
|
|
* n = (ramdisk_size + 4096 - 1) / 4096
|
|
*
|
|
* Note that in version 3 of the boot image header, page size is fixed at 4096 bytes.
|
|
*
|
|
* The structure of the vendor boot image (introduced with version 3 and
|
|
* required to be present when a v3 boot image is used) is as follows:
|
|
*
|
|
* +---------------------+
|
|
* | vendor boot header | o pages
|
|
* +---------------------+
|
|
* | vendor ramdisk | p pages
|
|
* +---------------------+
|
|
* | dtb | q pages
|
|
* +---------------------+
|
|
* o = (2112 + page_size - 1) / page_size
|
|
* p = (vendor_ramdisk_size + page_size - 1) / page_size
|
|
* q = (dtb_size + page_size - 1) / page_size
|
|
*
|
|
* 0. all entities in the boot image are 4096-byte aligned in flash, all
|
|
* entities in the vendor boot image are page_size (determined by the vendor
|
|
* and specified in the vendor boot image header) aligned in flash
|
|
* 1. kernel, ramdisk, vendor ramdisk, and DTB are required (size != 0)
|
|
* 2. load the kernel and DTB at the specified physical address (kernel_addr,
|
|
* dtb_addr)
|
|
* 3. load the vendor ramdisk at ramdisk_addr
|
|
* 4. load the generic ramdisk immediately following the vendor ramdisk in
|
|
* memory
|
|
* 5. set up registers for kernel entry as required by your architecture
|
|
* 6. if the platform has a second stage bootloader jump to it (must be
|
|
* contained outside boot and vendor boot partitions), otherwise
|
|
* jump to kernel_addr
|
|
*/
|
|
|
|
/* When the boot image header has a version of 4, the structure of the boot
|
|
* image is as follows:
|
|
*
|
|
* +---------------------+
|
|
* | boot header | 4096 bytes
|
|
* +---------------------+
|
|
* | kernel | m pages
|
|
* +---------------------+
|
|
* | ramdisk | n pages
|
|
* +---------------------+
|
|
* | boot signature | g pages
|
|
* +---------------------+
|
|
*
|
|
* m = (kernel_size + 4096 - 1) / 4096
|
|
* n = (ramdisk_size + 4096 - 1) / 4096
|
|
* g = (signature_size + 4096 - 1) / 4096
|
|
*
|
|
* Note that in version 4 of the boot image header, page size is fixed at 4096
|
|
* bytes.
|
|
*
|
|
* The structure of the vendor boot image version 4, which is required to be
|
|
* present when a version 4 boot image is used, is as follows:
|
|
*
|
|
* +------------------------+
|
|
* | vendor boot header | o pages
|
|
* +------------------------+
|
|
* | vendor ramdisk section | p pages
|
|
* +------------------------+
|
|
* | dtb | q pages
|
|
* +------------------------+
|
|
* | vendor ramdisk table | r pages
|
|
* +------------------------+
|
|
* | bootconfig | s pages
|
|
* +------------------------+
|
|
*
|
|
* o = (2128 + page_size - 1) / page_size
|
|
* p = (vendor_ramdisk_size + page_size - 1) / page_size
|
|
* q = (dtb_size + page_size - 1) / page_size
|
|
* r = (vendor_ramdisk_table_size + page_size - 1) / page_size
|
|
* s = (vendor_bootconfig_size + page_size - 1) / page_size
|
|
*
|
|
* Note that in version 4 of the vendor boot image, multiple vendor ramdisks can
|
|
* be included in the vendor boot image. The bootloader can select a subset of
|
|
* ramdisks to load at runtime. To help the bootloader select the ramdisks, each
|
|
* ramdisk is tagged with a type tag and a set of hardware identifiers
|
|
* describing the board, soc or platform that this ramdisk is intended for.
|
|
*
|
|
* The vendor ramdisk section is consist of multiple ramdisk images concatenated
|
|
* one after another, and vendor_ramdisk_size is the size of the section, which
|
|
* is the total size of all the ramdisks included in the vendor boot image.
|
|
*
|
|
* The vendor ramdisk table holds the size, offset, type, name and hardware
|
|
* identifiers of each ramdisk. The type field denotes the type of its content.
|
|
* The vendor ramdisk names are unique. The hardware identifiers are specified
|
|
* in the board_id field in each table entry. The board_id field is consist of a
|
|
* vector of unsigned integer words, and the encoding scheme is defined by the
|
|
* hardware vendor.
|
|
*
|
|
* For the different type of ramdisks, there are:
|
|
* - VENDOR_RAMDISK_TYPE_NONE indicates the value is unspecified.
|
|
* - VENDOR_RAMDISK_TYPE_PLATFORM ramdisks contain platform specific bits, so
|
|
* the bootloader should always load these into memory.
|
|
* - VENDOR_RAMDISK_TYPE_RECOVERY ramdisks contain recovery resources, so
|
|
* the bootloader should load these when booting into recovery.
|
|
* - VENDOR_RAMDISK_TYPE_DLKM ramdisks contain dynamic loadable kernel
|
|
* modules.
|
|
*
|
|
* Version 4 of the vendor boot image also adds a bootconfig section to the end
|
|
* of the image. This section contains Boot Configuration parameters known at
|
|
* build time. The bootloader is responsible for placing this section directly
|
|
* after the generic ramdisk, followed by the bootconfig trailer, before
|
|
* entering the kernel.
|
|
*
|
|
* 0. all entities in the boot image are 4096-byte aligned in flash, all
|
|
* entities in the vendor boot image are page_size (determined by the vendor
|
|
* and specified in the vendor boot image header) aligned in flash
|
|
* 1. kernel, ramdisk, and DTB are required (size != 0)
|
|
* 2. load the kernel and DTB at the specified physical address (kernel_addr,
|
|
* dtb_addr)
|
|
* 3. load the vendor ramdisks at ramdisk_addr
|
|
* 4. load the generic ramdisk immediately following the vendor ramdisk in
|
|
* memory
|
|
* 5. load the bootconfig immediately following the generic ramdisk. Add
|
|
* additional bootconfig parameters followed by the bootconfig trailer.
|
|
* 6. set up registers for kernel entry as required by your architecture
|
|
* 7. if the platform has a second stage bootloader jump to it (must be
|
|
* contained outside boot and vendor boot partitions), otherwise
|
|
* jump to kernel_addr
|
|
*/
|
|
|
|
/* Private struct */
|
|
struct andr_image_data {
|
|
ulong kernel_ptr; /* kernel address */
|
|
u32 kernel_size; /* size in bytes */
|
|
u32 ramdisk_size; /* size in bytes */
|
|
ulong vendor_ramdisk_ptr; /* vendor ramdisk address */
|
|
u32 vendor_ramdisk_size; /* vendor ramdisk size*/
|
|
u32 boot_ramdisk_size; /* size in bytes */
|
|
ulong second_ptr; /* secondary bootloader address */
|
|
u32 second_size; /* secondary bootloader size */
|
|
ulong dtb_ptr; /* address of dtb image */
|
|
u32 dtb_size; /* size of dtb image */
|
|
ulong recovery_dtbo_ptr; /* size in bytes for recovery DTBO/ACPIO image */
|
|
u32 recovery_dtbo_size; /* offset to recovery dtbo/acpio in boot image */
|
|
|
|
const char *kcmdline; /* boot kernel cmdline */
|
|
const char *kcmdline_extra; /* vendor-boot extra kernel cmdline */
|
|
const char *image_name; /* asciiz product name */
|
|
|
|
ulong bootconfig_addr; /* bootconfig image address */
|
|
ulong bootconfig_size; /* bootconfig image size */
|
|
|
|
u32 kernel_addr; /* physical load addr */
|
|
ulong ramdisk_addr; /* physical load addr */
|
|
ulong ramdisk_ptr; /* ramdisk address */
|
|
ulong dtb_load_addr; /* physical load address for DTB image */
|
|
ulong tags_addr; /* physical addr for kernel tags */
|
|
u32 header_version; /* version of the boot image header */
|
|
u32 boot_img_total_size; /* boot image size */
|
|
u32 vendor_boot_img_total_size; /* vendor boot image size */
|
|
};
|
|
|
|
#endif
|